1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ad9a0f0a56e159597f1dd469e54920284fd13535abe610edaa9801a969bd04. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a563de72-aac0-4506-b4bd-64a1ad749584.json and https://artists.proofprofile.net/proofs/artist/a563de72-aac0-4506-b4bd-64a1ad749584.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
iCarly - Music From and Inspired by the Hit TV Show
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabc8d8688d85416ac70c0c3d8241a35915ceeb06a62f7fc38963964fd57ee46. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10801549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2300739e3c05d82b0cdbf959f45a639c8966cb2219139546b790ec2ff349d89. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10801546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4a7fdebae98bbbe4951ab4b1743b038d3e50abba502ccccc0c62600a2a418f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10801547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915ff8892bad8163799e6cebddc904175c5108443cb6440b3cafbbbbc4e542cf. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10801548.
I Don't Wanna Be In Love (Dance Floor Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d8ce0b369ae823fd42b7a73527497a61dcd0db90bbdff5147088c588abf463. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10607447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabc8d8688d85416ac70c0c3d8241a35915ceeb06a62f7fc38963964fd57ee46. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10801549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915ff8892bad8163799e6cebddc904175c5108443cb6440b3cafbbbbc4e542cf. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10801548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f87765ecdcdd727d5c43a186facdf1fa2c0028995b03162d2de658156a2104. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10801544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cd0da3474d0b42bda6f42fc14a264c5d70be2f446a74c9f3253144139db136. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10801545.
iSoundtrack II - Music From and Inspired by the Hit TV Show
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14882f33241a72acd0d2d4516b17d81a52e873ac4992ae099316192d946a727. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11105754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a08095216abe17856c303ec837cbe8108307f13a27e408366bd82b98019ed34. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11105756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2052e1d270b4d50637381d9a06891801313de0b9a0dc51f3dd7c703024792e1b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBARL0800038.
Leave It All To Me (Theme from iCarly) (feat. Drake Bell) - Billboard Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d89e10d2a461c37c2a991137e2b73722f0cba4448675e8f987552a05d4b1f3. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USN1R1103001.